Assemble and disassemble a desktop computer with various External input and Output Devices. Make ensure that all the devices are working. ...
Assemble and disassemble a desktop computer with various External input and Output Devices. Make ensure that all the devices are working.
How to assemble and disassemble a desktop computer?
Parts of Computer System
The computer
system is made up of following external devices:
·
CPU Cabinet
·
Monitor
·
Keyboard
·
Mouse
·
Printer/scanner [if attached]
 |
| Computer Parts |
Disassembling
the computer system
Detach the power cable:
The
Dissembling of the computer system starts with externally connected device
detachment. Make sure the computer system is turned off, if not than successfully
shut down the system and then start detaching the external devices from the
computer system. It includes removing the power cable from electricity switch
board, than remove the cable from SMPS (Switch mode power supply) from the back
of the CPU Cabinet. Do not start the disassembling without detaching the power
cable from computer system. Now remove the remaining external devices like
keyboard, mouse, monitor, printer or scanner from the back of CPU cabinet.
Remove the Cover:
The
standard way of removing tower cases used to be to undo the screws on the back
of the case, slide the cover back about an inch and lift it off. The screw
drivers as per the type of screw are required to do the task.
Remove the adapter cards:
Make
sure if the card has any cables or wires that might be attached and decide if
it would be easier to remove them before or after you remove the card. Remove
the screw if any, that holds the card in place. Grab the card by its edges,
front and back, and gently rock it lengthwise to release.
Remove the drives:
Removing
drives is easier. There can be possibly three types of drives present in your
computer system, Hard disk drive, CD/DVD/Blue ray drives, floppy disk drives
(almost absolute now a day). They usually have a power connector and a data
cable attached from the device to a controller card or a connector on the
motherboard. CD/DVD/Blue Ray drive may have an analog cable connected to the
sound card for direct audio output.
The
power may be attached using one of two connectors, a Molex connector or a Berg
connector for the drive. The Molex connector may require to be wiggled slightly
from side to side and apply gentle pressure outwards. The Berg connector may
just pull out or it may have a small tab which has to be lifted with a
screwdriver.
Now
pull data cables off from the drive as well as motherboard connector. The hard
disk drive and CD/DVD drives have two types of data cables. IDE and SATA
cables. The IDE cables needs better care while being removed as it may cause
the damage to drive connector pins. Gently wiggle the cable side ways and
remove it. The SATA cables can be removed easily by pressing the tab and
pulling the connector straight back.
Now
remove the screws and slide the drive out the back of the bay.
Remove the memory module:
Memory
modules are mounted on motherboard as the chips that can be damaged by manual
force if applied improperly. Be careful and handle the chip only by the edges. SIMMs
and DIMMs are removed in different way:
·
SIMM – gently push back the
metal tabs while holding the SIMM chips in the socket. Tilt the SIMM chip away
from the tabs until a 45% angle. It will now lift out of the socket. Put SIMM
in safe place.
·
DIMM – There are plastic tabs on
the end of the DIMM sockets. Press the tabs down and away from the socket. The
DIMM will lift slightly. Now grab it by the edges and place it safely. Do not
let the chips to get dust at all.
Remove the Power supply:
The power
supply is attached into tower cabinet at the top back end of the tower. Make
sure the power connector is detached from switch board. Start removing the
power connector connected to motherboard including CPU fan power connector,
cabinet fan, front panel of cabinet power buttons and all the remaining drives
if not detached yet.
Now remove the
screws of SMPS from the back of the cabinet and the SMPS can be detached from
tower cabinet.
Remove the motherboard:
Before
removing all the connectors from motherboard, make sure u memorize the
connectors for assembling the computer if required, as that may require to
connect the connectors at its place. Remove the screws from the back of the
motherboard and you will be able to detach it from the cabinet. Now remove the
CPU fan from the motherboard. The seat sink will be visible now, which can be
removed by the plastic tab which can be pulled back one stretching it side way.
Assembling
the computer system
The assembling
of the computer system is exactly the opposite of disassembling operation.
Before starting assembling the computer system, make sure you have the screws
and a screw driver for those.
The first step
for assembling the computer system starts with mounting the processor on the
processor socket of motherboard. To mount the process, you don’t need to apply
any force. The special ZIF (zero insertion force) sockets are usually used to
prevent any damage to the processor pins. Once the processor is mounted, the
heat sink will be attached on top of processor. The CPU fan is also attached on
top of heat sink.
Now the
motherboard is to be fixed vertically in tower case and the screws are fixed
from behind of the motherboard.
Now line up
the power supply at the top back end of the cabinet and screw it. The power
connectors for motherboard power supply and CPU fan power supply are to be
connected. If the cabinet cooling fan is required than it is to be screwed at
the back end grill of the cabinet and its power connector is to be connected
from SMPS.
Install the
CD/DVD drives at the top front end of the cabinet and screw it. Install the
Hard disk drive and floppy disk drive below CD/DVD drive and screw it. Make
sure once screwed there is no vibration in either of the CD/DVD, Hard disk or
Floppy disk drives.
Now select the
appropriate data cable and connect one end of the cable to its drive socket and
other end at its appropriate connector on motherboard. For SATA hard disk drive
or CD/DVD drives use SATA cable and its power cable, else use IDE data cable.
Do the proper jumper settings as per the usage requirement.
It is time now
to mount the memory modules on the motherboard by aligning the RAM to its
socket on motherboard and press it down ward. Make sure the side tab are fixed
into the RAM notch. If not you may still have to press a bit.
Install the
internal cards to its socket and attach the cables or power cable to it. The
selection of right socket or slot is required as per the type of socket.
Cover the
tower by placing it and pressing towards front side and screw it.
Connect the
external devices with CPU at its appropriate socket. It includes mouse and
keyboard at PS2 or USB connectors. Monitor at the video output socket. Connect
the power cable to the back of tower in SMPS. Plug in the power cable to
electric board.
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